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-rw-r--r--linux-user/flatload.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/linux-user/flatload.c b/linux-user/flatload.c
index 04d8138d12..0e4be5bf44 100644
--- a/linux-user/flatload.c
+++ b/linux-user/flatload.c
@@ -487,7 +487,10 @@ int load_flt_binary(struct linux_binprm *bprm, struct image_info *info)
     stack_len += (bprm->envc + 1) * 4; /* the envp array */
 
 
+    mmap_lock();
     res = load_flat_file(bprm, libinfo, 0, &stack_len);
+    mmap_unlock();
+
     if (is_error(res)) {
             return res;
     }